Charles m



(No Model.)

0. M. BURGESS & H. G. VOIGHT. STOP FOR LATGHES.

No. 450,353. Patented Apr. 14,1891.

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CHARLES M. BURGESS AND HENRY G. VOIGHT, OF NEW BRITAIN, OONNECTL CUT,ASSIGNORS TO THE RUSSELL & ERWIN MANUFACTURING COMPANY,

OF SAME PLACE.

' STOP FOR LATCHES.

SPECIFIGATIQN forming part of Letters Patent No. 450,353, dated April14, 1891.

Application filed January 30, 1891. Serial No. 379,653. (No model.)

To all whom it may concern/.-

Be it known that we, CHARLES M. BURGESS and HENRY Gr. VOIGHT, bothcitizens of the United States, residing at New Britain, in the county ofHartford and State of Connecticut, have invented certain new and usefulImprovements in Stops for Latches, of which the following is aspecification.

Our invention relates to improvements in stops for latches; and theobjects of our improvement are simplicity of construction, convenience,and efticiency in operation.

In the accompanying drawings, Figure 1 is a front elevation of asufficient portion of a latch to show the connection of our stoptherewith, the front plate being removed and aportion of the face-platebeing in section. Fig. 2 is a like view of a portion of the same withthe hub locked in place by the stop; and Fig. 3 is a vertical section online :1; x of Fig. 2, looking toward the face-plate.

A designates the latch-case; B, the faceplate; O, the latch; D, thelatch-lever, and E the hub, having a stop-notch 4 on one side, allsubstantially as in ordinary latches of this class.

F designates a rotary stop-bolt having bearings in the face-plate and inany suitable support, as at 5, within'the latch-case, so that said boltmay be partially rotated, while it is at the same time permanently heldagainst lateral movement. The inner end of the bolt is provided with acrank-arm 6, having a locking projection 7 at its outer end. The rotarystop F is provided with a squared neck, as at 8, which fits withinshoulders or cheeks 9 9, Fig. 3, on the inner side of the face-plate.The stop-bolt is provided with a spring 10, which has a constanttendency to keep the squared neck within the shoulders 9 9, as shown.The outer end of the rotary stop-bolt F is to be provided with anysuitable means for rotating it-as, for instance, it may be fitted forthe application of a'driver by means of a slot or its equivalent. Whenthe'crankarm is in a horizontal position, so as to throw its lockingprojection 7 to the front, as shown in Fig. 1, the projecting portion ofthe hub E, havingthe notch 4, will pass under said looking projection 7,and thereby leave the latchhub free to be operated in the usual manner.By pressing upon the outer end of the bolt against the force of thespring 10 to slip the stop-bolt endwise sufficiently to force thesquared neck out from between the shoulders or checks 9 at the inside ofthe face-plate the stop-bolt F may be turned one-quarter of arevolution, so as to bring its crank-arm into a verticalposition withits locking projection 7 within the notch 4 of the hub. Upon releasingthe endwise pressure on the bolt the spring 10 will force the squaredneck in between the shoulders 9 9 and lock the stop-- bolt in thatposition, thereby firmly locking the hub.

We are aware of the latches shown in the applications of HenryE.Russell, Jr., Serial No. 370,851, filed November 10, 1890, and ThomasLyons, Serial No. 379,681, filed January 30, 1891, and the same arehereby disclaimed.

We claim as our invention- 1. In a latch, the combination. of the hubhaving the notch 4, a rotary stop-bolt having a crank-arm 6 at its innerend, with a locking projection 7 on the outer end of said crankarm forengaging the notch in said hub, substantially as described, and for thepurpose specified.

2. In a latch, the combination of the hub having a notch, the rotatingstop-bolt with a locking projection for engaging said notch and thesquared neck, shoulders or checks 9 9 for receiving said neck, and thespring 10 for holding said squared neck within said shoulders,substantially as described, and for the purpose specified.

onAs. M. BURGESS. HENRY c. VOIGHT.

itnesses:

, '1. S. BISHOP, M. S. WIARD.

